Battery maintainer interface



FIG. 1 is a perspective view of the ornamental design for the battery maintainer interface;

FIG. 2 is a front view of the battery maintainer interface of FIG. 1;

FIG. 3 is a left side view of the battery maintainer interface of FIG. 1;

FIG. 4 is a right side view of the battery maintainer interface of FIG. 1;

FIG. 5 is a top view of the battery maintainer interface of FIG. 1;

FIG. 6 is a bottom view of the battery maintainer interface of FIG. 1; and,

FIG. 7 is a back view of the battery maintainer interface of FIG. 1.

In these drawings, the solid lines illustrate the claimed ornamental design, whereas the broken lines illustrate environmental features that form no part of the claimed ornamental design. 

CLAIM The ornamental design for a battery maintainer interface, as shown and described. 